st: cancer dataset

Dear all,
I search informations about the cancer.dta dataset which is available
with -webuse- under Stata. My aim is to use this dataset to illustrate a
lecture on survival analysis in a biomedical master (with student more
interested by the medical research than by subtleties of the Cox
models). I search for example the locations of these cancers, and more
informations if possible.
Thank you for your help
Jean-benoit